Paper shredder



FIG. 1 is a perspective view of a paper shredder;

FIG. 2 is a front elevational view thereof,

FIG. 3 is a right side elevational view thereof, with a left side elevational view being a mirror image thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

The broken lines immediately adjacent the claimed areas represent the bounds of the claimed design while all other broken lines are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design. 

The ornamental design for a paper shredder, as shown and described. 